Regulating-nozzle for turbines.



UNITED ST -Es v PATENT OFFICE.

VICTOR GELPKE, OF LUCERN E, SWITZERLAND, AND PAUL KUGEL, 'OF DUSSELDORF,

, GERMANY.

REGULATING-NOZZLE FOR TURBINES.

Specification iii-Letters Patenti Patented Jan. 21', 1908.

Application 516d October 13.1905. Serial No; 282.664.

regulating n fzzles fo "turbiines;which distin guishes itsel by anlfi'spe'cially simp construction in avoidino li upturin of the cohduit-pipe or thewl ten \Ne a aiif these objects by th manneriillu'strat in the accompanylng drawing in \VhilCh-/ moved within the still-standi g nozzle.

' can be as shownin Fig.

of a part of the turbi -whe: l -'Fig. 2 the section of another kind of co struction of the nozzle-regulating.

Similar letters refer to similar parts throughout the several viewsl The nozzle-regulators use d hp till now with changeableness of the nozzle-{gate or passage are so constructed that tlii nozzle-core is The consequence isthat the regulatin apparatus must be set into the interior of t e conduitpipe at least partially and therefore will have to lie in the water thus beifhg not a proaclly" able in an easy way from he outsi e; T e resent gnvention avoids these dilliculties by caving immovable the core of the nozzle and by moving the nozzle. The arrangement Figure 1 shows a s ction the nozzle and The conduit-pipe a is Joined to the cylinder 1) which by means of ribs 0 bears in its middle the conduit-core d. With the cylinder bis connected a mainly cylindrical piece .9 and between these two cylinders is the nozzle '2'. being able-o be moved. in the direction of the axle, however watertight towards the conduit-sides. According to the movements of the nozzle in the direction of the axle it is approaching the core (I or is getting away from it thus causing a change of-the channel-section 7b. In the same degree as this channel-section changes the current running through the nozzle will vary.

The motion of the nozzle may be. made in any way. For instance the nozzle-nose may be supplied with teeth 8 for receiving those of -"a pip-ion s which may be driven by the governor.

There is still another regulating shown in the sketch which works with help of the water-pressure i 'elf: As the pressure of the streaming water tries always to push the nozzle towards the widest opening one only wants to provide the nozzle with a piston 'ithe biggest nozzle-section influenced by the streaming waterand to allow pressure water to worlc beneath this piston. This pressure-water! will thus be able to shift the nozzle about contrary to the pressure of the streaming water and thus narrow the chan-. nel of the nozzle. The junction of the space m'beneath t e piston 11" with the pressurewater may he done thro igh joining the conduit-pipe a by means help of any. regulating a paratus 7c. Through this regu ator, which 0.1 ows the water to enter the space m or to let it out the nozzle will be shifted about and thus will narrow or en-' large the water-canal in the nozzle.

By'this arrangement the pressure, admittedthrough the regulator results in closing the" nozzle-section. Fig. 2 of the drawing shows an arrangement in which the constant pressure tries to shut the nozzle and the water-pressure admitted by the regulating ,c'ock extends it. This is attained by joining the space p with the conduit-pipe by means of the pipe 1'. As the section'in p is bigger than the section in c the constant w ater-pressure will incline to close the nozzle. The regulators task is then to open the nozzle what can easily be done by joining thenozzle i with a piston i. The space 0 thus gained will then according. to requirement receive the Water-pressure from the regulating apparatus by means of a tube (1.

Other methods besides those shown may be used to bring the nozzle into motion and the constructive arrangementmay also be different than those given here as an examwith the same success for steamand gas turbines.

We claim:

1. In regulating nozzle for turbines the combination wit 1 the casing and the stationary nozzle core carried by said casing, of the p10. The same c'onstruetion is also appliable the active section. ofwhich is bigger than pipes Z and n with combination with the casing and the stationary nozzle core carried thereby of a'nozzle surrounding said core and adapted to be forcedaway therefrom by the pressure of the working stream, a piston connected to said nozzle and means for admitting lluid beneath said piston, substantially as described.

4. In a regulatin nozzle for turbines the combination .with t 1e cylinder and the stationary nozzle core carried thereby, of a nozzle surrounding said core sliding in said cylinder, a second cylinder, a iston flange encircling said nozzle and sli ing in said second cylinder and means for admitting fluid to said second cylinder beneath said.

piston, substantially as described,

5. In a regulating nozzle for turbines, the combination with the casing and the stationary nozzle core carried thereby, of a nozzle surrounding said nozzle core, and adapted to slide in said casing, a piston surrounding said nozzle and-means for admitting fluid to one side of said piston, substantially as described.

VICTOR GELPKE. PAUL KUGEL.

Witnesses WILLIAM ESSENWEIN, ERNEST ANDRfi 

